M4100-26G changes VLAN membership after reboot

Question

Hi there, hoping someone can help or confirm this is an issue. I recently got my first M4100-26G and updated to the latest firmware 10.0.2.20, the unit and features work as expected however when I save and then reboot there are some issues I'm seeing.

First the time resets back to the default 1970 when I reboot
The VLAN membership is not what I had when I saved prior to rebooting
The Trunk Allowed VLANS is not what I had when I saved prior to rebooting

Can someone confirm if these are outstanding issues with firmware 10.0.2.20 ?

Thanks,

J

LaurentMa · Answer

Hi&nbsp;exocomp
&nbsp;
Welcome to the Community!
&nbsp;
I can confirm we don't show outstanding issues&nbsp;with firmware 10.0.2.20.
&nbsp;
It is normal the time resets back to the default when you reboot, only SNTP time servers and time zone configuration are&nbsp;kept in startup-config, not the latest time before reset. After reboot, SNTP sync will happen and your M4100-26G will show correct time again.
&nbsp;
Ports VLAN configuration should be kept intact after a reboot, provided the configuration was saved. Are you sure you actually save the configuration (so basically write the running-config into startup-config)? Are you using Web interface (GUI) or the command line (CLI)? 
&nbsp;

Web GUI: Please refer to the M4100 Web User Manual page 14, table 1. On each page, there is a button APPLY. This&nbsp;APPLY button sends the updated configuration to the switch. Configuration changes take effect immediately, but in fact you are writing into the running-config. Running-config is volatile until you SAVE it into startup-config. To do that, please refer to page 405 and select Maintenance -&gt;&nbsp;Save Config -&gt;&nbsp;Save Configuration.

&nbsp;

CLI:&nbsp;Please refer to the M4100 CLI&nbsp;Manual page&nbsp;371. The command save will permanently write running-config into NVRAM, in fact into the startup-config file.&nbsp;

&nbsp;
(M4100) &gt;enable(M4100) #save

&nbsp;
Let us know if this helps!
&nbsp;
Regards,

exocomp · Answer

Hi LaurentMa,&nbsp;Thanks for replying and confirming it is not a known issue with the firmware. &nbsp;I've been following the manual and I did see the section on saving configurations on page 405. &nbsp;I'm following the steps from the manual using the Web GUI, I put a tick mark next to:&nbsp;"Saving all applied changes will cause all changes to configurations panels that were applied, but not saved, to be saved, thus retaining their new values across a system reboot."&nbsp;I then click on Apply and get confirmation dialog box confirming it is ok. &nbsp;I then wait 5 minutes and login again to check the VLAN Memberships and it is not what I saved.&nbsp;How do you think I should proceed next, keep in mind I'm a new user of the switch, so there is a chance I might be doing something wrong but as far as I can tell I'm following the steps acurately.&nbsp;Thanks,J

exocomp · Answer

To add to my previous response. &nbsp;Here is an example:&nbsp;Before Reboot&nbsp;&nbsp;&nbsp;&nbsp;After Reboot&nbsp;&nbsp;NOTE: See how VLAN 1 and 50 were added, why did this happen ?&nbsp;&nbsp;Thanks,J&nbsp;&nbsp;

LaurentMa · Answer

Hi exocomp
&nbsp;
There must be conflicting configuration between Switching\VLAN\Advanced\VLAN Trunking Configuration you are showing in screenshots above, and&nbsp;Switching\VLAN\Advanced\VLAN&nbsp;Membership next page in the menu on the left. VLAN Membership data most likely took precedence when you save your configuration.
&nbsp;
You can download your configuration file in Maintenance\Download to control the running-config: for interface 0/1, you should look at the switchport commands (Trunk or General) or the conflictual combination of both.&nbsp;In order to fix this, I would recommend you clear all configuration in&nbsp;Switching\VLAN\Advanced\VLAN&nbsp;Membership?&nbsp;
&nbsp;
Please let me know. If you want, you can also copy and paste the VLAN/port information from your dowloaded configuation file in this thread?
&nbsp;
Regards,
&nbsp;

exocomp · Answer

Hi Laurent,&nbsp;&gt;&gt;You can download your configuration file in Maintenance\Download&nbsp;In order for me to get the switch configuration file I have to go to the upload section not download, it is kind of confusing, so I guess you meant Configuration/Upload not download. &nbsp;Anyway, as far as I can tell VLAN membership is setup correctly, please review below and let me know.&nbsp;&nbsp;&nbsp;Here is the config file:!Current Configuration:
!
!System Description "M4100-26G ProSafe 24-port Gigabit L2+ Intelligent Edge Managed Switch, 10.0.2.20, B1.0.1.1"
!System Software Version "10.0.2.20"
!System Up Time          "0 days 0 hrs 17 mins 7 secs"
!Additional Packages     QOS,IPv6 Management,Routing
!Current SNTP Synchronized Time: SNTP Client Mode Is Disabled
! 
vlan database
vlan 50,100,200,300
vlan routing 1 1 
vlan association subnet 10.0.0.0 255.255.255.0 300
vlan association subnet 172.16.0.0 255.255.255.0 100
vlan association subnet 172.16.1.0 255.255.255.0 200
exit 
configure
no sntp client mode
time-range
line console
exit 
line telnet
exit 
line ssh
exit 
! 
interface 0/1
switchport mode trunk 
switchport trunk allowed vlan 1,50,100,200,300
vlan acceptframe vlanonly
vlan ingressfilter
exit 
interface 0/2
exit 
interface 0/3
switchport mode trunk 
switchport trunk allowed vlan 1,50,100,200,300
vlan acceptframe vlanonly
vlan ingressfilter
vlan participation auto 1
vlan participation include 100,200,300
vlan tagging 100,200,300
exit 
interface 0/4
exit 
interface 0/5
vlan participation auto 1
vlan participation include 100,200,300
vlan tagging 100,200,300
exit 
interface 0/6
exit 
interface 0/7
vlan pvid 50
vlan ingressfilter
vlan participation auto 1
vlan participation include 50
vlan tagging 50
exit 
interface 0/8
exit 
interface 0/9
exit 
interface 0/10
exit 
interface 0/11
exit 
interface 0/12
exit 
interface 0/13
exit 
interface 0/14
exit 
interface 0/15
exit 
interface 0/16
exit 
interface 0/17
exit 
interface 0/18
exit 
interface 0/19
exit 
interface 0/20
exit 
interface 0/21
exit 
interface 0/22
exit 
interface 0/23
exit 
interface 0/24
exit 
interface 0/25
exit 
interface 0/26
exit 
interface lag 1 
exit 
interface lag 2 
exit 
interface lag 3 
exit 
interface lag 4 
exit 
interface lag 5 
exit 
interface lag 6 
exit 
interface lag 7 
exit 
interface lag 8 
exit 
interface lag 9 
exit 
interface lag 10 
exit 
interface lag 11 
exit 
interface lag 12 
exit 
interface vlan 1 
routing
ip address dhcp
exit 
exit I can't spot what I'm doing wrong so appreciate if you can take a look.&nbsp;Thanks,J&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;